Sand-screen.



D. REINERT.

SAND SCREEN.

APPLICATION TILED SEPT.9,1912.

lvwemtoao wi/bmmoao lltll DANIEL REINERT, 0F TEMPLE,- PENNSYLVANIA.

SAND-SCREEN.

Specification of Letters Patent.

rammed Dec. 9, 1913.

Application filed September 9, 1912. Serial No. 719,26'6.

To all whom it may concern:

Be it known that I, DANIEL REINERT, a citizen of the United States, residing at Temple, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Sand-Screens, of which the following is a specification.

'This invention relates to improvements in sand screen construction and the object is. to provide a screen of this character with means for, agitating the screen member while the sand is passing over it, to insure against the clogging of the screen mesh.

The invention consists of a frame and a screen member movably mounted therein, with a series of ratchet wheels adapted to alternately depress each of the four corners of said screen member and springs for returning the said member to normal posi tion; adjustable means are also provided for limiting the movement of the screen member.

The invention is more fully described in the following specification and clearly illustrated in the accompanying drawing, in which Figure 1 is a side elevation of my screen. Fig. 2 is a plan view thereof, taken in the direction of the arrow 2.

The numeral 1 designates the frame which comprises a pair of parallel upper rails 2 and a pair of like lower rails 3 and has suitable end pieces a for spacing the rail members. I

5 designates a suitable support located beneath the raised end of the frame, which is preferably set at an angle of about thirtyfive degrees.

Between the upper and lower pairs of rails lt locate the screen member, which comprises a frame 6 inclosing a comparatively fine mesh screen 7. This frame is movably mounted on guide bolts 8, one near each corner, which bolts pass through the lower and upper rails and on which the frame is free to move easily. Surrounding each bolt, beneath the screen frame, it place a coiled spring 9 seated in a positioning cup 10.

The spacing end-pieces 4 may be of any suitable well known construction and through the arrangement of the bolts 8, it is evident that the upper rails 2 and the companion lower rails 3 mav be securely associated with said pieces 4: and in such manner that the rails 2 may be disconnected from the rails 3 when desired. From this construction it is evident that the bolts 8 have the dual function of securing the relative superimposed parts 2 and 3 properly connected, while further serving as guides for the screen frame.

In the upper rail members, at each corner of the frame, I place a set screw 11, provided with a jam nut 12 to permit adjustment thereof. At each corner of the screen frame I form a button 13 adapted to contact with theends of the set screws 11. To this screen frame I also attach four trip arms 14, eachof which projects beyond the line of the rail members of the machine frame 1.

On the upper surface of the top rail memhers I mount two parallel shafts 15, to the end of one of which shafts is secured a power wheel 16. Each shaft carries a sprocket wheel 17 and these are connected by a chain, indicated by the dotted line 18.

On each of the shafts, at both ends, immediately outside of the side lines of the frame 1, T secure a ratchet wheel 20. Each of these ratchet wheels is located directly above one of the trip arms 14, with which it isadapted to contact as it I'BVOlVES.

- When power is applied to the shafts 15, the wheels 20 will contact with the arms 14.- and depress the screen member 6 and compress the springs 9 until the ratchet tooth passes off of the trip arm when the spring will return the screen to normal position.

In returning to said position, the screen frame will contact with the set screws 11,

and this striking action will jar the screen frame sufliciently to loosen the pebbles and prevent clogging of the mesh.

The ratchet wheels 20 are preferably arranged to actuate the screen frame alternately, by setting them so that one is slightly in advance of the other, and in this manner the four corners of the screen are alternately agitated, thus keeping up a constant jarring action and insuring against clogging most effectually.

The ratchet wheels may be set to agitate either both ends of the screen frame alternately or arranged to agitate both longitudinal sides in the same way, or the wheels may be set to act in unison to move the entire screen frame evenly.

It is evident that the details of construction may be varied without departing from the spirit of my invention, and I do not therefore limit myself to the exact form shown, but

What I claim is The combination with a support having superimposed pairs of rails, of spacing devices interposed between both pairs of rails at the ends thereof, bolts passing through both pairs of rails and securing the same against said spacing devices, a Vibrating 1 screen movable bodily in the space between In testimony whereof I aflix my signature 15 in presence of two witnesses.

DANIEL REINERT. Witnesses ED. A. KELLY, CLARA E. YOUNG. 

